Factor x^2+4x-21
Consider the form . Find a pair of integers whose product is and whose sum is . In this case, whose product is and whose sum is .
Write the factored form using these integers.
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Name
| Name | one billion nine hundred ninety-eight million three hundred seventy thousand four hundred seventy-four |
|---|
Interesting facts
- 1998370474 has 16 divisors, whose sum is 3040809480
- The reverse of 1998370474 is 4740738991
- Previous prime number is 73
Basic properties
- Is Prime? no
- Number parity even
- Number length 10
- Sum of Digits 52
- Digital Root 7
Name
| Name | one billion nine hundred fifty-two million two hundred seventy-three thousand eight hundred fifteen |
|---|
Interesting facts
- 1952273815 has 16 divisors, whose sum is 2388693888
- The reverse of 1952273815 is 5183722591
- Previous prime number is 2543
Basic properties
- Is Prime? no
- Number parity odd
- Number length 10
- Sum of Digits 43
- Digital Root 7
Name
| Name | seven hundred six million two hundred thirty-six thousand nine hundred twenty-three |
|---|
Interesting facts
- 706236923 has 8 divisors, whose sum is 811226592
- The reverse of 706236923 is 329632607
- Previous prime number is 197
Basic properties
- Is Prime? no
- Number parity odd
- Number length 9
- Sum of Digits 38
- Digital Root 2