Q: Find two prime numbers whose sum of 10 and whose product is 21?

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13 and 5 13+5=18 13x5=65

Multiply prime numbers or prime factors to find their product.

If you are looking for two prime numbers whose difference is 1, then the numbers have to be 1 & 3.

No. You can only find the LCM of at least two numbers, prime or otherwise. The LCM of any two prime numbers is their product.

10 and 28

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13 and 5 13+5=18 13x5=65

Multiply prime numbers or prime factors to find their product.

Prime numbers are used to find the product of the prime factors of composite numbers.

19

Use a factor tree. 1955 391,5 23,17,5

If you are looking for two prime numbers whose difference is 1, then the numbers have to be 1 & 3.

The LCM of a set of prime numbers is their product.

find two positive numbers whose product is a maximum. 1.) the sum is s.

391

No. You can only find the LCM of at least two numbers, prime or otherwise. The LCM of any two prime numbers is their product.

The numbers are 18 and 20.

asked to work out the product of two or more numbers, then you need to multiply the numbers together. If you are asked to find the sum of two or more numbers, then you need to add the numbers together.