170 (number)

170 (one hundred seventy) is a whole number. It comes after 169 and before 171.

In mathematics

• Even number: 170 is even because it can be divided by 2 with no remainder.
• Factors: 170 = 2 × 5 × 17.
• Sum of squares: 170 can be written as a sum of two squares in two different ways: 170=13^2+1^2 and 170=11^2+7^2

In science

Chemistry: One of the isotopes of the element ytterbium has a mass number of 170 (called ytterbium-170).