The Number

678

Six Hundred and Seventy-Eight

Nearby Numbers

Positive, nonzero integers within three units

675
Six Hundred and Seventy-Five
676
Six Hundred and Seventy-Six
677
Six Hundred and Seventy-Seven
679
Six Hundred and Seventy-Nine
680
Six Hundred and Eighty
681
Six Hundred and Eighty-One

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

6.78e2

Reciprocal

A number multiplied with its reciprocal is one.

0.0014749262536873156

The reciprocal of 678.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 678 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Six hundred and seventy-eight is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Six hundred and seventy-eight is a composite number with 8 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number six hundred and seventy-eight has the following 3 prime factors:

2
Two
3
Three
113
One Hundred and Thirteen

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

21 · 31 · 1131 = 678

Base Conversions

The number six hundred and seventy-eight in 35 different bases