The greatest common divisor of two positive integers is 6, and the least common multiple is 90 Why is the answer two,
90 = 2 * 3 * 3 * 5 the factors divisible by 6 are 6, 18, 30 and 90
The first pair: 30,18
Second pair: 90,6
The greatest common divisor of the two numbers is 18, the least common multiple is 180, and the difference between the two numbers is 54______ And______ .
Because 180 △ 18 = 10, 10 can be decomposed into two coprime numbers, i.e. 1 and 10, 2 and 5, so the two numbers have several situations: 18 × 1 = 18, 18 × 10 = 180 (not conforming to the meaning of the problem), 18 × 2 = 36, 18 × 5 = 90 (not conforming to the meaning of the problem). Answer: these two numbers are 36 and 90. So the answer is: 36, 90
What are the prime numbers within 10? What are the total numbers?
Prime 2,3,5,7, combined 4,6,8,9,10
1 is neither prime nor composite