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【重点点击】一个自然数的因数中,为质数的因数叫做这个数的质因数。把一个合数,用质因数相乘的形式表示出来,叫做分解质因数。例如:24=2×2×2×3,75=3×5×5。我们数学课本上介绍的分解质因数,是为求最大公因数、最小公倍数服务的。其实,把一个数分解成质因数相乘的形式,能启发我们寻找解答许多难题的突破口,从而顺利解题。
[Click to Click] a natural number of factors, the prime factor is called the prime factor of the prime number. To a composite number, multiplied by the quality factor expressed in the form, called the decomposition factor. For example: 24 = 2 × 2 × 2 × 3,75 = 3 × 5 × 5. The decomposition factor introduced in our math textbooks is for the greatest common factor, the least common multiple. In fact, the decomposition of a number into a form of multiplication of prime factors can inspire us to find a breakthrough in solving many difficult problems so as to solve problems smoothly.