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433,311,263是质数。
解:分别对433,311,263三个数进行因数分解可得,
433=1x433=433x1,
311=1x311=311x1,
263=1x263=263x1。
从上可得,433,311,263这三个数只有1和其本身这两个因数。
所以433,311,263都是质数。
扩展资料:
质数的性质
1、质数p的约数只有两个,即1和p。
2、任一大于1的自然数,要么本身是质数,要么可以分解为几个质数之积,且这种分解是唯一的。
3、质数的个数是无限的。
4、若n为正整数,在n^2与(n+1)^2之间至少有一个质数。
参考资料来源:百度百科-质数
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是的三个都是的1000以下的质数有:
2.3.5.7.11.13.17.19.23.29.31.37.41.43.47.53.59.61.67.71.73.79.83.89.97.101.103.107.109.113.131.137.139.147.149.151.157.163.167.173.179.181.191.193.197.199.211.223.227.229.233.239.241.251.257.263.269.271.277.281.283.293.307.311.313.317.331.337.347.349.353.359.367.373.379.383.389.397.401.409.419.421.431.433.439.443.449.457.461.463.467.479.487.491.499.503.509.521.523.541.547.557.563.569.571.577.587.593.599.601.607.613.617.619.631.641.643.647.653.659.661.673.677.683.691.701.709.719.727.733.739.743.751.757.761.769.773.787.797.809.811.821.823.827.829.839.853.857.859.863.877.881.883.887.907.911.919.929.937.941.947.953.967.971.977.983.991.997
2.3.5.7.11.13.17.19.23.29.31.37.41.43.47.53.59.61.67.71.73.79.83.89.97.101.103.107.109.113.131.137.139.147.149.151.157.163.167.173.179.181.191.193.197.199.211.223.227.229.233.239.241.251.257.263.269.271.277.281.283.293.307.311.313.317.331.337.347.349.353.359.367.373.379.383.389.397.401.409.419.421.431.433.439.443.449.457.461.463.467.479.487.491.499.503.509.521.523.541.547.557.563.569.571.577.587.593.599.601.607.613.617.619.631.641.643.647.653.659.661.673.677.683.691.701.709.719.727.733.739.743.751.757.761.769.773.787.797.809.811.821.823.827.829.839.853.857.859.863.877.881.883.887.907.911.919.929.937.941.947.953.967.971.977.983.991.997
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是的 质数是指只能分解为1和本身相乘的数
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433,311,263是不是质数?
是的,而且3个全是。
是的,而且3个全是。
参考资料: http://baike.baidu.com/view/10626.htm
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