![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/77c6a7efce1b9d168516abf8e1deb48f8d546451?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/fcfaaf51f3deb48ff0b89047e21f3a292cf57851?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/f2deb48f8c5494ee8ef33e803ff5e0fe98257e51?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
因数:因数是指能整除给定数的数,举例来说,2是4的因数,因为4除以2等于2。倍数:倍数是指给定数的整数倍,举例来说,8是4的倍数,因为8除以4等于2。质数:质数是指大于1且只能被1和自身整除的正整数,举例来说,2、3、5、7都是质数。合数:合数是指大于1且不是质数的正整数,也就是能被大于1和小于自身的其他数整除的数,举例来说,4、6、8、9都是合数。这些特点可以总结为:1. 因数是指能整除给定数的数,倍数是指给定数的整数倍。2. 质数是只能被1和自身整除的正整数,而合数是能被大于1和小于自身的其他数整除的数。3. 所有的质数都是合数的补集,即非质数即合数。4. 1既不是质数也不是合数,因为质数定义为大于1的数,而合数定义为非质数。