Homework Help: math question

Posted by Sony on Wednesday, March 13, 2013 at 6:54pm.

-The product of all the positive factors of 20 ( including 20) can be written2^x.5^y. Find x+y.

-The number 18 is equal to 2 times the sum of its digits: 1+8=9. 2x9=18. There are 4 two digit numbers that are equal to 4 times the sum of their digitss . Find 3 of those 4.

No one has answered this question yet.

Answer this Question

Related Questions

math - You can use the prime factorization of a number, written as the product ...
math - how often does a leap year occur? what are al the prime numbers less then...
math - Need to find the real number. Someone performed a trade of 20,000 less ...
math - The factors of a number include 9, 12, and 20. What is the smallest ...
math - You can use the prime factorization of a number, written as the product ...
math - You can use the prime factorization of a number, written as the product ...
Math - x^2+x-k find all positive values for k, if it can be factored Allowed ...
quad. eq. - find 3 consecutive integers such that the product of the second and ...
Stats - If we are testing for the difference between the means of 2 independent ...
math - when will a product be positive regardless of the number of factors? &...

For Further Reading

First Name:
School Subject:
Answer: