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70 in words

70

seventy

70 is written seventy.

Ways to write it

As an ordinal: seventieth
Roman numeral: LXX
Expanded form: 70

Place value

Place	Digit	Value
tens	7	70
ones	0	0

Number facts

Even or odd: Even
Prime or composite: Composite
Factors: 1, 2, 5, 7, 10, 14, 35 and 70 (8 factors)
First 10 multiples: 70, 140, 210, 280, 350, 420, 490, 560, 630, 700
Square: 70 × 70 = 4,900
Square root: ≈ 8.37
Sum of the digits: 7 + 0 = 7
Rounded to the nearest 10: 70
Number before: 69
Number after: 71
In binary: 1000110

Quick check

What number comes just after 70?
Show the answer
71
Is 70 even or odd?
Show the answer
Even
What is 70 + 10?
Show the answer
80

Practise with a game

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Frequently asked questions

How do you write 70 in words?

70 is written "seventy".

Is 70 a prime number?

No. 70 is a composite number, because it has more than two factors.

What are the factors of 70?

The factors of 70 are 1, 2, 5, 7, 10, 14, 35 and 70.

How do you write 70 in Roman numerals?

70 in Roman numerals is LXX.