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37 is a prime number from 1-100. 37 has 2 factors, 1 and 37. It is said to be another number wherein when digits are added together, they make a composite number. It is the twelfth prime number, and the twelfth prime number from 1-100.

## Proofs

• — 37 can be divided by 1.
• — 37 cannot be divided by 2-36.
• — 37 can be divided by 37.
• Therefore, 37 has 2 factors.

## As an Exponent of Mersenne Number

237 - 1, which is the number 137,438,953,471, is divisible by 223, and therefore not a prime number.

## Rela​tionship with other odd numbers

### The numbers before

• The previous prime number is 31. The numbers in between are composite.
• Among them, 33 is divisible by 3 and 11, while 35 is divisible by 5 and 7.
• 31 and 37 are six numbers apart; therefore, they are sexy primes.

### The numbers after

• The next odd number, 39, is not a prime number. It is divisible by 3 and 13.
• 41, the odd number following 39, is a prime number.
• 37 and 41 are four numbers apart; therefore, they are cousin primes.
• 43, the odd number following 41, is a prime number.
• 37 and 43 are six numbers apart; therefore, they are sexy primes.

## Usage

### Science

• Rubidium atomic number
• Normal temperature of human's body

### Others

• Number of plays of William Shakespeare that is thought to have written (counting Henry IV as three parts)
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